001/*
002 *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
003 *  <p>
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *  <p>
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *  <p>
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package com.mybatisflex.core.query;
017
018import com.mybatisflex.core.constant.SqlConsts;
019import com.mybatisflex.core.dialect.IDialect;
020import com.mybatisflex.core.util.ObjectUtil;
021import com.mybatisflex.core.util.StringUtil;
022
023import java.util.List;
024
025/**
026 * 操作类型的操作
027 * 示例1：and not ( id > 100 and name like %%)
028 */
029public class OperatorQueryCondition extends QueryCondition {
030
031    private final String operator;
032    private QueryCondition childCondition;
033
034    public OperatorQueryCondition(String operator, QueryCondition childCondition) {
035        this.operator = operator;
036        this.childCondition = childCondition;
037    }
038
039    @Override
040    public String toSql(List<QueryTable> queryTables, IDialect dialect) {
041        StringBuilder sql = new StringBuilder();
042
043        //检测是否生效
044        if (checkEffective()) {
045            String childSql = childCondition.toSql(queryTables, dialect);
046            if (StringUtil.isNotBlank(childSql)) {
047                QueryCondition prevEffectiveCondition = getPrevEffectiveCondition();
048                if (prevEffectiveCondition != null) {
049                    sql.append(prevEffectiveCondition.connector);
050                }
051                sql.append(operator)
052                    .append(SqlConsts.BRACKET_LEFT)
053                    .append(childSql)
054                    .append(SqlConsts.BRACKET_RIGHT);
055            }
056        }
057
058        if (this.next != null) {
059            return sql + next.toSql(queryTables, dialect);
060        }
061
062        return sql.toString();
063    }
064
065    @Override
066    public Object getValue() {
067        return WrapperUtil.getValues(childCondition);
068    }
069
070    @Override
071    boolean containsTable(String... tables) {
072        if (childCondition != null && childCondition.containsTable(tables)) {
073            return true;
074        }
075        return nextContainsTable(tables);
076    }
077
078    @Override
079    public OperatorQueryCondition clone() {
080        OperatorQueryCondition clone = (OperatorQueryCondition) super.clone();
081        // deep clone ...
082        clone.childCondition = ObjectUtil.clone(this.childCondition);
083        return clone;
084    }
085
086}